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Bluelab Guardian Monitor Wifi | pH EC Temperature Monitor

Built-in Wifi | Compatible with Bluelab Edenic Software



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Save time and effort with the Guardian Monitor Wi-Fi

In just a glance, the Bluelab Guardian Monitor Wi-Fi conveys all 3 critical parameters for successful growth: pH, conductivity, and temperature. With built-in Wi-Fi capability, if enabled the Bluelab Guardian Monitor Wi-Fi can display data in Edenic. Allowing you to keep an eye on your nutrient levels from anywhere, any time.

The Bluelab Guardian Monitor Wi-Fi is a constant indicator of the desired levels of nutrient solution, enabling you to optimise these vital parameters as your crops progress through each growing stage.

Bold, bright and always on

The Bluelab Guardian Monitor Wi-Fi's plant-safe large backlit LED display allows you to view your pH, EC, and temperature at a glance.

You can also set discreet visual alarms for your preferred parameter ranges; these will let you know whenever your parameters are out of range. This ensures that you will always be on top of your reservoir conditions.

The Bluelab Guardian Monitor Wi-Fi is mains-powered and mounted to the wall or hung on support with two probes placed into your reservoir.

Built for growers

All our products are built in New Zealand with growers, for growers – this means you can be confident that your water-resistant Bluelab Guardian Monitor Wi-Fi can withstand the splashes that come with everyday growing. Designed and assembled in New Zealand from local and imported components.

Maintain your Bluelab Guardian Monitor Wi-Fi

While no calibration is required for conductivity and temperature, you will need to calibrate your monitor’s pH probe on a regular basis. Stock up on everything you need to clean, maintain and calibrate your probes by purchasing a Bluelab Probe Care Kit.

Stay connected to your parameters

The Bluelab Guardian Monitor Wi-Fi gives you mobile alerts in Edenic software. If something goes wrong in your nutrient reservoir, you will be the first to know. Two-way communication means you can update alarm settings from the comfort of your armchair, all adding up to that peace of mind your plants are well Guarded.


  • Measurement:
    • 0.0 – 14.0 pH, 0.0 – 5.0 EC, 0 – 50 ̊C
    • 0 – 2500 TDS (EC x 500)
  • Range:
    • 0 – 3500 ppm (EC x 700)
    • 0 – 50 ̊C / 32 – 122 ̊F
  • Resolution: 0.1 pH, 0.1 EC, 1 CF; 10 TDS, 10 ppm 1 ̊C / 1 ̊F
  • Accuracy at 25̊C / 77̊F: ± 0.1 pH, ± 0.1 EC, ± 1 CF; ± 50 TDS, ± 70 ppm; ± 1 ̊C / ± 2 ̊F
  • Automatic Temperature Compensation: Yes, if the conductivity probe is in the same solution as the pH probe
  • Operating Environment: 0 – 50 ̊C / 32 – 122 ̊F
  • Calibration: Not required for conductivity or temperature. pH requires two points, pH 7.0 & pH 4.0 or pH 10.0 calibration
  • Power Source: International power supply
  • Signal Range: Indoor / Urban: 20 meters. Outdoor / RF line-of-sight: 50 meters
  • Frequency Band: 2.4 GHz ISM
  • System Requirements: Microsoft Windows XP or greater for Bluelab Connect Software. Internet connection for remote access & data-logging to the cloud
  • Certifications: CE, FCC, IC. Contains Model XBEE2 Radio, IC: 4214A-XBEE2, FCC ID: OUR-XBEE2

In The Box

  • [1] x Bluelab Guardian Monitor Wifi | pH EC Temperature Monitor

Always On. Being There Optional.

Monitor your reservoir pH, Conductivity and Temperature with alerts on your phone when using the Wi-Fi-capable Bluelab Guardian Monitor.

  • Built-in Wi-Fi (with the option to disable it)
  • High/low pH, temperature and conductivity alarms
  • Non-volatile memory – keep settings through power loss
  • Plant-safe green LEDs with adjustable display brightness
  • 2 metre / 6.6-foot measurement probe cables
  • 110 – 240 VAC (Mains powered)
  • Interchangeable power plug
  • Replaceable Bluelab pH Probe (with BNC connection)

When connected to Edenic by Bluelab app:

  • Instant alarm alerts to your phone 
  • Remote monitoring and control
  • History reporting to assist data-driven decision making

2-Year Replacement Warranty For Bluelab Guardian Monitor Connect

  • If the product is faulty within the warranty period, the product will be replaced with a new one.
  • Please send the product to the following address on the contact us page.

6-Month For Phobes Replacement Warranty

  • If the product is faulty within the warranty period, the product will be replaced with a new one.
  • Please send the product to the following address on the contact us page.